可以免费使用，不过有限制：You’ve reached your GPT-4o limit. Responses will use GPT-3.5 until your limit resets after 11:54 AM.
我也没有，看官网 https://openai.com/index/hello-gpt-4o/ 似乎在灰度： > ... GPT-4o’s capabilities will be rolled out iteratively (with extended red team access starting today).
